rp_hud: allow registration of custom HUDs
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Wuzzy
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71f6acc773
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@ -2,35 +2,11 @@
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rp_hud = {}
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rp_hud.registered_statbars = {}
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-- time in seconds the breath bar will still show after going full again
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local BREATH_KEEP_TIME = 2.05
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local health_bar_definition = {
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hud_elem_type = "statbar",
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position = { x=0.5, y=1 },
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text = "heart.png",
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text2 = "heart_gone.png",
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number = minetest.PLAYER_MAX_HP_DEFAULT,
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item = minetest.PLAYER_MAX_HP_DEFAULT,
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direction = 0,
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size = { x=24, y=24 },
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offset = { x=(-10*16)-64-32, y=-(48+24+24)},
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z_index = 1,
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}
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local breath_bar_definition = {
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hud_elem_type = "statbar",
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position = { x=0.5, y=1 },
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text = "bubble.png",
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text2 = "bubble_gone.png",
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number = minetest.PLAYER_MAX_BREATH_DEFAULT*2,
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item = minetest.PLAYER_MAX_BREATH_DEFAULT*2,
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dir = 0,
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size = { x=24, y=24 },
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offset = {x=16,y=-(48+24+24)-24},
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z_index = 1,
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}
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local hud_ids = {} -- HUD IDs, per-player
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local hidden_huds = {} -- List of hidden HUDs, per-player
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local breath_timers = {} -- count the time each player has a full breath bar
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@ -76,15 +52,9 @@ local function initialize_builtin_statbars(player)
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-- Health bar
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if not hidden_huds[name].healthbar and minetest.settings:get_bool("enable_damage", true) then
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if hud_ids[name].id_healthbar == nil then
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health_bar_definition.number = player:get_hp()
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hud_ids[name].id_healthbar = player:hud_add(health_bar_definition)
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end
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rp_hud.add_statbar(player, "healthbar", player:get_hp())
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else
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if hud_ids[name].id_healthbar ~= nil then
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player:hud_remove(hud_ids[name].id_healthbar)
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hud_ids[name].id_healthbar = nil
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end
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rp_hud.remove_statbar(player, "healthbar")
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end
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-- Breath bar
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@ -93,20 +63,15 @@ local function initialize_builtin_statbars(player)
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-- after it has become full again instead of instantly disappearing.
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if (not hidden_huds[name].breathbar) and ((player:get_breath() < minetest.PLAYER_MAX_BREATH_DEFAULT) or (breath_timers[name] <= BREATH_KEEP_TIME)) then
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if minetest.settings:get_bool("enable_damage", true) then
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if hud_ids[name].id_breathbar == nil then
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breath_bar_definition.number = player:get_breath()*2
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hud_ids[name].id_breathbar = player:hud_add(breath_bar_definition)
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local id = rp_hud.add_statbar(player, "breathbar", player:get_breath()*2)
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if id ~= nil then
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breath_timers[name] = 0
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end
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else
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if hud_ids[name].id_breathbar ~= nil then
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player:hud_remove(hud_ids[name].id_breathbar)
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hud_ids[name].id_breathbar = nil
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end
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rp_hud.remove_statbar(player, "breathbar")
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end
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elseif hud_ids[name].id_breathbar ~= nil then
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player:hud_remove(hud_ids[name].id_breathbar)
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hud_ids[name].id_breathbar = nil
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rp_hud.remove_statbar(player, "breathbar")
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end
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end
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@ -162,40 +127,6 @@ local function player_event_handler(player, eventname)
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return false
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end
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local function replace_builtin(name, definition)
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if definition == nil or type(definition) ~= "table" or definition.hud_elem_type ~= "statbar" then
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return false
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end
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if name == "health" then
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health_bar_definition = definition
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for name,ids in pairs(hud_ids) do
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local player = minetest.get_player_by_name(name)
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if player and hud_ids[name].id_healthbar then
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player:hud_remove(hud_ids[name].id_healthbar)
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initialize_builtin_statbars(player)
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end
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end
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return true
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end
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if name == "breath" then
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breath_bar_definition = definition
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for name,ids in pairs(hud_ids) do
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local player = minetest.get_player_by_name(name)
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if player and hud_ids[name].id_breathbar then
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player:hud_remove(hud_ids[name].id_breathbar)
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initialize_builtin_statbars(player)
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end
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end
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return true
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end
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return false
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end
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minetest.register_on_joinplayer(initialize_builtin_statbars)
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minetest.register_on_joinplayer(initialize_hotbar)
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minetest.register_on_leaveplayer(cleanup_builtin_statbars)
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@ -217,9 +148,7 @@ minetest.register_globalstep(function(dtime)
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if player:get_breath() >= minetest.PLAYER_MAX_BREATH_DEFAULT then
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breath_timers[name] = breath_timers[name] + dtime
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if breath_timers[name] > BREATH_KEEP_TIME then
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if hud_ids[name].id_breathbar ~= nil then
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player:hud_change(hud_ids[name].id_breathbar, "number", 0)
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end
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rp_hud.remove_statbar(player, "breathbar")
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end
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else
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breath_timers[name] = 0
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@ -234,39 +163,104 @@ end)
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-- Hide a HUD element from view for player.
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-- hud_name is either "breathbar" or "healthbar".
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rp_hud.hide_hud = function(player, hud_name)
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if not rp_huds.registered_statbars[hud_name] then
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minetest.log("error", "[rp_hud] rp_hud.hide_hud called with unknown hud_name: "..tostring(hud_name))
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return
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end
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local name = player:get_player_name()
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local ids = hud_ids[name]
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if not ids then
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return
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end
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if hud_name == "healthbar" then
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if ids.id_healthbar ~= nil then
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player:hud_remove(ids.id_healthbar)
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end
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hidden_huds[name].healthbar = true
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elseif hud_name == "breathbar" then
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if hud_ids[name].id_breathbar ~= nil then
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player:hud_change(ids.id_breathbar, "text", "")
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end
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hidden_huds[name].breathbar = true
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end
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rp_hud.remove_statbar(player, hud_name)
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hidden_huds[name][hud_name] = true
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initialize_builtin_statbars(player)
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end
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-- Un-hide a HUD element from view for player.
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-- hud_name is either "breathbar" or "healthbar".
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-- hud_name is one of the registered statbars names.
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rp_hud.unhide_hud = function(player, hud_name)
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if not rp_huds.registered_statbars[hud_name] then
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minetest.log("error", "[rp_hud] rp_hud.unhide_hud called with unknown hud_name: "..tostring(hud_name))
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return
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end
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local name = player:get_player_name()
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local ids = hud_ids[name]
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if not ids then
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return
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end
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if hud_name == "healthbar" then
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hidden_huds[name].healthbar = false
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elseif hud_name == "breathbar" then
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hidden_huds[name].breathbar = false
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end
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hidden_huds[name][hud_name] = false
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initialize_builtin_statbars(player)
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end
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-- Registers a statbar.
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-- * name: Identifier
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-- * def: Table with these fields:
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-- * image: Statbar icon
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-- * image_gone: Statbar icon when empty/gone
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-- * max_value: Maximum possible statbar value (number of "half-images")
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-- * init_value: Initial value (defaults to max_value)
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-- * direction: Statbar direction (see lua_api.md) (default: 0)
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-- * offset: Statbar offset (see lua_api.md)
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-- * z_index: Statbar Z-index (see lua_api.md)
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rp_hud.register_statbar = function(name, def)
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local statbar_definition = {
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hud_elem_type = "statbar",
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position = { x=0.5, y=1 },
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text = def.image,
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text2 = def.image_gone,
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number = def.max_value or def.init_value,
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item = def.max_value,
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direction = def.direction or 0,
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size = { x=24, y=24 },
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offset = def.offset,
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z_index = def.z_index or 1,
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}
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rp_hud.registered_statbars[name] = statbar_definition
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end
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-- Adds the statbar of the given type if it does not exist yet.
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-- Returns ID if statbar was added, nil otherwise
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rp_hud.add_statbar = function(player, statbarname, initial_value)
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local name = player:get_player_name()
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if hud_ids[name]["id_"..statbarname] then
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return
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else
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local hud_def = table.copy(rp_hud.registered_statbars[statbarname])
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if initial_value then
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hud_def.number = initial_value
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end
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local id = player:hud_add(hud_def)
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hud_ids[name]["id_"..statbarname] = id
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return id
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end
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end
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-- Removes the statbar of the given type if it does exist.
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-- Returns true if statbar was actually removed.
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rp_hud.remove_statbar = function(player, statbarname)
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local name = player:get_player_name()
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if not hud_ids[name]["id_"..statbarname] then
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return false
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else
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player:hud_remove(hud_ids[name]["id_"..statbarname])
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hud_ids[name]["id_"..statbarname] = nil
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return true
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end
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end
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rp_hud.register_statbar("healthbar", {
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image = "heart.png",
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image_gone = "heart_gone.png",
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max_value = minetest.PLAYER_MAX_HP_DEFAULT,
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offset = { x=-256, y=-96},
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})
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rp_hud.register_statbar("breathbar", {
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image = "bubble.png",
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image_gone = "bubble_gone.png",
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max_value = minetest.PLAYER_MAX_BREATH_DEFAULT*2,
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offset = {x=16,y=-120},
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})
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